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Index › Programming Questions & Help › Programs › equator treemap runs as applet only
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equator treemap runs as applet only (Read 622 times)
zerodivide
equator treemap runs as applet only
Apr 10th, 2008, 5:17am  
Should Ben's Simple Treemap Example (page 190-193 Visualizing Data) only run as an applet?  My java skills are barely existent so I could be missing something that should be obvious.  After sorting through various typos (causes overload exception) I could finally "run" my equator program.  It produces a java screen but goes into error.  By accident I discovered that the exported version does work in the browser.  What gives?

What I get when clicking Run at the sketch:
java.lang.RuntimeException: use textFont() before textWidth()

at processing.core.PGraphics.textWidth(PGraphics.java:2404)

at processing.core.PApplet.textWidth(PApplet.java:7650)

at Temporary_641_9467$WordItem.draw(Temporary_641_9467.java:43)

java.lang.RuntimeException: use textFont() before textWidth()


at processing.core.PGraphics.textWidth(PGraphics.java:2404)


at processing.core.PApplet.textWidth(PApplet.java:7650)


at Temporary_641_9467$WordItem.draw(Temporary_641_9467.java:43)


at treemap.Treemap.draw(Treemap.java:47)


at Temporary_641_9467.draw(Temporary_641_9467.java:28)


at processing.core.PApplet.handleDisplay(PApplet.java:1465)


at processing.core.PGraphics.requestDisplay(PGraphics.java:690)


at processing.core.PApplet.run(PApplet.java:1562)


at java.lang.Thread.run(Unknown Source)



at treemap.Treemap.draw(Treemap.java:47)

at Temporary_641_9467.draw(Temporary_641_9467.java:28)

at processing.core.PApplet.handleDisplay(PApplet.java:1465)

at processing.core.PGraphics.requestDisplay(PGraphics.java:690)

at processing.core.PApplet.run(PApplet.java:1562)

at java.lang.Thread.run(Unknown Source)
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fry
Re: equator treemap runs as applet only
Reply #1 - Apr 11th, 2008, 7:36pm  
this is a weird bug that has come up in the last month or two:
http://dev.processing.org/bugs/show_bug.cgi?id=726

the simple workaround is calling textFont() inside draw() (instead of just inside setup()).

i hope to get this fixed for 0136, since it obviously does quirky things to many of the book examples.
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